I am trying to use highchart in r. I just downloaded this map https://code.highcharts.com/mapdata/countries/nz/nz-all.js . As per the documentation, seems like it is using EPSG 2193. "crs":{"type":"name","properties":{"name":"urn:ogc:def:crs:EPSG:2193"}} . And it looks like this - [3871,7816],[3871,7778],[3832,7773].....
However it does not have all the regions I need, but I have those regional boundaries as lat/long multi polygon in this format [174.3611,-35.7754],[174.3594,-35.7388],[174.3251,-35.7238],[174.3361,-35.7537].....
Provided numbers are just examples, how do I add these boundaries in to the map provided in high map library. I just read this link which says, https://www.highcharts.com/docs/maps/latlon to mention the proj4string separately for that particular region. But I don't know what projection system I have to use in this case. Can anyone help me on this?
Thanks.
Did you see the vignette https://cran.r-project.org/web/packages/highcharter/vignettes/charting-maps.html?
hcmap("countries/nz/nz-all")